1116011580 has 48 divisors (see below), whose sum is σ = 3308649120. Its totient is φ = 280096768.

The previous prime is 1116011579. The next prime is 1116011587. The reversal of 1116011580 is 851106111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1116011580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116011587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546045 + ... + 548084.

It is an arithmetic number, because the mean of its divisors is an integer number (68930190).

Almost surely, 2^1116011580 is an apocalyptic number.

1116011580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116011580 is an abundant number, since it is smaller than the sum of its proper divisors (2192637540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1116011580 is a wasteful number, since it uses less digits than its factorization.

1116011580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094158 (or 1094156 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 24.

The square root of 1116011580 is about 33406.7594956470. The cubic root of 1116011580 is about 1037.2646251749.

Adding to 1116011580 its reverse (851106111), we get a palindrome (1967117691).

The spelling of 1116011580 in words is "one billion, one hundred sixteen million, eleven thousand, five hundred eighty".